Recording medium drive including latch member for head actuator member

Inactive Publication Date: 2007-06-28
FUJITSU LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0012] The interval between the rotation shaft and the magnetic body may be set larger than the interval between the rotation shaft and the further magnetic body in the magnetic medium drive. This structure enables the magnetic body to have a larger amount of the movement as compared with the further magnetic body for a unit rotation angle. In this case, when the rotation angle increases, the further magnetic body is gradually released from the magnetic attraction of the voice coil motor while the magnetic body is allowed to receive a rapidly increasing magnetic attraction. The magnetic attraction established for the magnetic body on the latch member at the operative position is set larger than the magnetic attraction established for the further magnetic body on the latch member at the inoperative position.
[0013] The latch member may include a flat surface designed to contact with the pro

Problems solved by technology

However, if the carriage starts swinging late, the swinging movement of the

Method used

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  • Recording medium drive including latch member for head actuator member
  • Recording medium drive including latch member for head actuator member
  • Recording medium drive including latch member for head actuator member

Examples

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Embodiment Construction

[0022]FIG. 1 schematically illustrates the inner structure of a hard disk drive, HDD, 11 as a specific example of a recoding medium drive according to an embodiment of the present invention. The hard disk drive 11 includes a box-shaped enclosure 12. The enclosure 12 includes a box-shaped base 13 defining an inner space of a flat parallelepiped opened upward, for example. The base 13 may be made of a metallic material such as aluminum, for example. Molding process may be employed to form the base 13.

[0023] A cover, not shown, is coupled to the base 13. The cover serves to close the opening of the base 13. Pressing process may be employed to form the cover out of a plate, for example. An aluminum plate may be employed as the plate, for example. The plate may alternatively be a layered material, for example.

[0024] At least one magnetic recording disk 14 as a recording medium is incorporated within the inner space of the base 13. The magnetic recording disk or disks 14 is mounted on t...

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PUM

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Abstract

A head actuator member is supported on a support shaft for swinging movement. A voice coil motor is connected to the head actuator member. A protuberance is formed on the head actuator member. The protuberance moves along a predetermined movement path around the support shaft. A latch member is supported on a rotation shaft for swinging movement to reach an operative position established on the movement path of the protuberance. The latch member engages with the protuberance at the operative position. A magnetic body on the latch member receives a magnetic attraction of the voice coil motor when the latch member is located at the operative position. The latch member is forced to stay at the operative position. Even if the head actuator member starts swinging later than the swinging movement of the latch member, the latch member reliably engages with the protuberance on the head actuator member.

Description

BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to a recoding medium drive such as a hard disk drive, HDD, for example. In particular, the invention relates to a recording medium drive including a recording medium and a ramp member located outside the recording medium. [0003] 2. Description of the Prior Art [0004] A head actuator member or carriage is incorporated in a hard disk drive. The carriage is designed to swing around a support shaft along a predetermined movement path. When the carriage swings farthest in a normal direction outward from a magnetic recording disk, the carriage is located at a standby position. The tip end of the carriage is received on a ramp member. On the other hand, when the carriage swings in a reverse direction opposite to the normal direction, the tip end of the carriage gets away from the ramp member. [0005] A latch member is incorporated in the hard disk drive. The latch member is designed to swing ar...

Claims

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Application Information

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IPC IPC(8): G11B5/54
CPCG11B5/54
Inventor AKAMA, KAZUNORIKATO, YASUHIKO
Owner FUJITSU LTD
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